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Design methodology for compact photonic-crystal-based wavelength division multiplexers
compact photonic-crystal-based wavelength division multiplexers
2015/8/10
We present an extremely compact wavelength division multiplexer design, as well as a general framework for designing and optimizing frequency selective devices embedded in photonic crystals satisfying...
Propagation Characteristics of Seven-core Fiber for Spatial and Wavelength Division Multiplexed 10-Gbit/s Channels
Fiber measurements Fiber optics communications
2015/5/26
Propagation characteristics of seven-core fiber were investigated for multiplexed signals of spatial-division and wavelength-division. Effect of chromatic dispersion and inter-core crosstalk were eval...
Novel Architectures for Orthogonal Wavelength Division Multiplexed Passive Optical Networks (OWDM-PONs) in a 25-GHz Grid
Networks Optical communications
2015/5/22
A novel orthogonal wavelength-division-multiplexed passive optical network with 25-GHz channel spacing has been proposed and experimentally demonstrated for the first time.Error-free transmission over...
Bit-error Rate Performance of Nyquist Wavelength-Division Multiplexed Quadrature Phase-Shift Keying Optical Signals
Coherent communications Multiplexing Optical communications
2015/5/20
We measure bit-error rates of polarization-multiplexed Nyquist-WDM QPSK signals,which have rectangular spectral shapes and channel spacing equal to the symbol rate. The spectral efficiency of 4 bit/s/...
Wide Bandwidth, Low Loss 1 by 4 Wavelength Division Multiplexer on Silicon for Optical Interconnects
Wide Bandwidth Low Loss 1 by 4 Wavelength Division Multiplexer Silicon Optical Interconnects
2015/5/20
We demonstrate an add/drop filter based on coupled vertical gratings on silicon. The concept is extended to implement a 1 by 4 wavelength division multiplexer with 3nm bandwidth,1dB insertion loss and...
Real-time and single-shot measurement of instantaneous frequencies of wavelength-division-multiplexed signals
Fiber optics and optical communications Phase measurement Continuous optical signal processing
2015/6/10
A self-reference characterization technique is demonstrated for simultaneously measuring instantaneous frequencies of multi-wavelength optical signals using a single measurement platform. The techniqu...
Colourless Interferometric Technique for Large Capacity Quantum Key Distribution Systems by use of Wavelength Division Multiplexing
Colourless Interferometric Technique Large Capacity Quantum Key Distribution Systems Wavelength Division Multiplexing
2015/7/14
A novel interferometric technique is proposed for high-capacity quantum key distribution using wavelength division multiplexing. With additional phase modulation, we exhibited valid interference at an...
Coherent Detection of Wavelength Division Multiplexed Phase- Modulated Radio-over-Fibre Signals
Wavelength Division Multiplexed Phase- Modulated Radio-over-Fibre Signals
2015/7/31
A WDM phase-modulated Radio-over-Fibre link using digital coherent detection is experimentally demonstrated.3x50Mb/s WDM transmission of a BPSK modulated 5GHz RF carrier is achieved over 25km.